Integrated virtual-design methods for forecasting radiated noise of single cylinder diesel block

Abstract

The two cycle dynamical results, such as the bearing load, the piston thrust, and the load spatial distribution etc., were obtained by hybrid dynamical simulation of the flexible assembly of the block and crank-train. The finite element model of the block was validated by modal test. The frequency response of the block was calculated using the finite element method (FEM). Finally, the radiated noise such as sound power level and efficiency in the out sound field were obtained using the direct boundary element method (BEM).

Keywords

block / radiated noise / hybrid multi-body dynamics / finite element method (FEM) / boundary element method (BEM)